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<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
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        table {
            border-collapse: collapse;
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        td,
        th {
            border: 1px solid #000;
            text-align: center;
            padding: .45em 1.65em;
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</head>

<body>
    <table>
        <thead>
            <tr>
                <th scope="col" rowspan="2">序号</th>
                <th scope="col" rowspan="2">姓名</th>
                <th scope="colgroup" colspan="3">分数</th>
            </tr>
            <tr>
                <th scope="col">数学</th>
                <th scope="col">英语</th>
                <th scope="col">体育</th>
            </tr>
        </thead>
        <tbody>
            <tr>
                <td>1</td>
                <td>李明</td>
                <td>89</td>
                <td>90</td>
                <td>83</td>
            </tr>
            <tr>
                <td>2</td>
                <td>李华</td>
                <td>95</td>
                <td>88</td>
                <td>91</td>
            </tr>
            <tr>
                <td>3</td>
                <td>李雷</td>
                <td colspan="3">288</td>
            </tr>
        </tbody>
    </table>
</body>

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